async def async_bind_awaitable(
function: Callable[[_ValueType], Awaitable[_NewValueType]],
inner_value: Awaitable[Result[_ValueType, _ErrorType]],
) -> Result[_NewValueType, _ErrorType]:
"""Async binds a coroutine over a value."""
container = await inner_value
if isinstance(container, Result.success_type):
return Result.from_value(await function(container.unwrap()))
return container # type: ignore[return-value]
def assert_failure(actual: Result[..., ...], expected: Any) -> None:
if isinstance(expected, Exception):
if isinstance(actual, Result.success_type):
raise AssertionError(f"Expected a failure but got {actual}.")
failure = actual.failure()
if isinstance(failure, Exception):
assert failure.__class__ == expected.__class__ and failure.args == expected.args, \
f"Expected f{expected} but got {actual}."
else:
raise AssertionError(f"Expected f{expected} but got {actual}.")
else:
assert actual == Result.from_failure(expected)
def __call__(self, stream_id: UUID) -> Result[StreamDetails, FailureDetails]:
stream = self.__find_stream_by_stream_id(stream_id).bind(
self.__verify_if_stream_exist
)
partial_projects = partial(stream.bind, self.__find_projects_by_stream)
partial_ksql = partial(
stream.bind, lambda stream_: self.__get_stream_by_name(stream_.name)
)
# TODO: Removes every `type: ignore` after resolution of
# https://github.com/dry-python/returns/issues/410
return flow( # type: ignore
Result.from_value(StreamDetails.build), # type: ignore
stream.apply,
bind(self.__call_and_apply(partial_projects)),
bind(self.__call_and_apply(partial_ksql)),
)
from returns.context import (
Reader,
ReaderFutureResult,
ReaderIOResult,
ReaderResult,
)
from returns.contrib.pytest import ReturnsAsserts
from returns.future import Future, FutureResult
from returns.io import IO, IOResult
from returns.maybe import Maybe
from returns.primitives.asserts import assert_equal
from returns.primitives.container import BaseContainer
from returns.result import Result
_containers: Sequence[BaseContainer] = (
Result.from_failure(1),
Result.from_value(1),
IO(1),
IOResult.from_failure(1),
IOResult.from_value(1),
Maybe.from_value(1),
Maybe.from_value(None),
Maybe.from_optional(None),
Future.from_value(1),
FutureResult.from_value(1),
FutureResult.from_failure(1),
Reader.from_value(1),
ReaderResult.from_value(1),
ReaderResult.from_failure(1),
ReaderIOResult.from_value(1),
ReaderIOResult.from_failure(1),
def next_state(self, state: int) -> ResultE[int]:
return Result.from_value(state + len(input_text))
def init_state(self) -> ResultE[int]:
return Result.from_value(0)
def test_return_false_with_result_container():
"""Ensures `is_io` function will return False for Result."""
assert is_io(Result.from_failure('failure')) is False
def start(self, args: OrderedDict) -> None:
self._start_args = Result.from_value(args)
self.logger.info("Created state: %s.", args)
from abc import ABC
from collections import OrderedDict
from typing import Final, final
from bge.types import KX_GameObject, KX_PythonComponent
from returns.result import Result, ResultE
from alleycat.common import AlreadyDisposedError, LoggingSupport, NotStartedError
from alleycat.core import ArgumentsHolder
RESULT_NOT_STARTED: Final = Result.from_failure(
NotStartedError("The proxy has not been started yet."))
RESULT_DISPOSED: Final = Result.from_failure(
AlreadyDisposedError("The proxy instance has been disposed already."))
class BaseProxy(ArgumentsHolder, LoggingSupport, ABC):
_start_args: ResultE[OrderedDict] = RESULT_NOT_STARTED
@final
@property
def start_args(self) -> ResultE[OrderedDict]:
return self._start_args
@property
def valid(self) -> bool:
return isinstance(self.start_args, Result.success_type)
def start(self, args: OrderedDict) -> None:
self._start_args = Result.from_value(args)
def state_of(x, y, *args):
return Result.from_value(MouseState(Point2D(x, y), set(args)))
def test_collect_all_result(iterable, sequence):
"""Iterable for ``Result`` and ``CollectAll``."""
assert Result.from_iterable(iterable, CollectAll) == sequence
def test_fail_fast_result(iterable, sequence):
"""Iterable for ``Result`` and ``FailFast``."""
assert Result.from_iterable(iterable, FailFast) == sequence
def assert_success(actual: Result[..., ...], expected: Any) -> None:
assert actual == Result.from_value(expected)
def init_state(self) -> ResultE[MouseState]:
return Result.from_value(MouseState(Point2D(0.5, 0.5), set()))
def test_apply_with_result():
"""Ensures that functions can be composed and return type is correct."""
applied = apply(Result.from_value(_function))
assert applied(Success(1)) == Success('2')
assert applied(Failure('s')) == Failure('s')
def require_type(obj: Any, expected: Type[T]) -> ResultE[T]:
if not isinstance(obj, not_empty(expected)):
return Failure(create_error(obj, expected))
return Result.from_value(obj)
